Motorcycles Specs > Yamaha > Yamaha RD 400

Yamaha RD 400 Specs

(1978)
Yamaha RD 400 image
The Yamaha RD 400 model is a Classic bike manufactured by Yamaha . In this version sold from year 1978 , the dry weight is  and it is equipped with a Twin, two-stroke motor. The engine produces a maximum peak output power of 43.00 HP (31.4 kW) @ 7500 RPM and a maximum torque of  . With this drive-train, the Yamaha RD 400 is capable of reaching a maximum top speed of 175.0 km/h (108.7 mph) . On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the Yamaha RD 400 has a  frame with front suspension being  and at the rear, it is equipped with  . Stock tire sizes are 3.00-18 on the front, and 3.50-18 on the rear. As for stopping power, the Yamaha RD 400 braking system includes Single disc size  at the front and Single disc size  at the back. 

Yamaha RD 400 General Information

Brand Yamaha 
Model Yamaha RD 400 
Start year 1978 
Year 1978 
Category Classic 
Factory Warranty (Years / miles)

Yamaha RD 400 Dimensions, Aerodynamics and weight

Frame type
Seat details
Wheelbase
Length
Width
Height
Seat Height
Alternate Seat Height
Ground Clearance
Trail size
Wheels details
Front Tyres - Rims dimensions 3.00-18 
Rear Tyres - Rims dimensions 3.50-18 
Front brakes Single disc 
Rear brakes Single disc 
Front Brakes Dimensions - Disc Dimensions
Rear Brakes Dimensions - Disc Dimensions
Curb Weight (including fluids) 175.0 kg (385.8 pounds) 
Dry Weight
Front Percentage of Weight
Rear Percentage of Weight
Weight-Power Output Ratio :
Fuel Tank Capacity 16.50 litres (4.36 gallons) 
Reserve Fuel Capacity
Carrying Details and Capacity
Front Suspension
Front Suspension Travel
Rear Suspension
Rear Suspension Travel

Yamaha RD 400 Engine and Transmission Technical Data

Engine type - Number of cylinders Twin, two-stroke 
Engine details
Fuel system
Engine size - Displacement - Engine capacity 399.00 ccm (24.35 cubic inches) 
Bore x Stroke 64.0 x 62.0 mm (2.5 x 2.4 inches) 
Compression Ratio 6.0:1 
Number of valves per cylinder
Camshaft Valvetrain Configuration Membrane 
Maximum power - Output - Horsepower 43.00 HP (31.4 kW) @ 7500 RPM 
Maximum torque
Engine Maximum RPM
Cooling system Air 
Lubrication system
Engine oil capacity
Exhaust system
Gearbox 6-speed 
Transmission type, final drive ratio Chain 
Clutch type
Driveline

Yamaha RD 400 Performance

Top Speed 175.0 km/h (108.7 mph) 
Acceleration 0 to 100 km/h (0 to 62 mph)
Acceleration 0 to 400m (1/4 mile)
Recuperation 60 to 140 km/h in highest gear
Fuel Consumption - MPG - Economy - Efficiency
CO2 emissions
Emissions

Yamaha RD 400 Electrical Systems, Ignition and Equipment

Ignition Type
Electrical Details
Starter Type
Instruments
Lights
How much horsepower does a Yamaha RD 400 have?
The Yamaha RD 400 has 43.00 HP (31.4 kW) @ 7500 RPM.

How fast is a Yamaha RD 400?
The Yamaha RD 400 top speed is 175.0 km/h (108.7 mph).

How many gears does a Yamaha RD 400 have?
The Yamaha RD 400 have 6 gears.